Viewing file:  LiteralElement.py (4.94 KB) -rw-r--r--
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########################################################################
#
# File Name: LiteralElement.py
#
#
"""
Implementation of the XSLT Spec import stylesheet element.
WWW: http://4suite.com/4XSLT e-mail: support@4suite.com
Copyright (c) 1999-2000 Fourthought Inc, USA. All Rights Reserved.
See http://4suite.com/COPYRIGHT for license and copyright information
"""
import string
import xml.dom.Element
import xml.dom.ext
from xml.xslt import XsltElement, AttributeValueTemplate
from xml.xslt import XSL_NAMESPACE, XsltException, Error
from xml.xpath import Util
from xml.dom import XML_NAMESPACE
class LiteralElement(XsltElement):
def __init__(self, doc, uri, localName, prefix, baseUri):
XsltElement.__init__(self, doc, uri, localName, prefix, baseUri)
def setup(self):
self._useAttributeSets = string.splitfields(self.getAttributeNS(XSL_NAMESPACE, 'use-attribute-sets'))
self._nss = xml.dom.ext.GetAllNs(self)
self._outputNss = {}
self.__attrs = []
self.excludedNss = []
sheet = self.ownerDocument.documentElement
sheet._lres.append(self)
excluded_prefixes = self.getAttributeNS(XSL_NAMESPACE, 'exclude-result-prefixes')
if excluded_prefixes:
excluded_prefixes = string.splitfields(excluded_prefixes)
for prefix in excluded_prefixes:
if prefix == '#default': prefix = ''
self.excludedNss.append(self._nss[prefix])
node = self.parentNode
while node:
if hasattr(node, 'excludedNss'):
self.excludedNss = self.excludedNss + node.excludedNss
break
node = node.parentNode
for attr in self.attributes.values():
if attr.name == 'xmlns' or attr.name[:6] == 'xmlns:' or attr.namespaceURI == XSL_NAMESPACE:
continue
name = attr.name
local_name = attr.localName
prefix = attr.prefix
uri = attr.namespaceURI
if sheet.namespaceAliases[1].has_key(uri):
name = sheet.namespaceAliases[0][prefix] + ':' + local_name
uri = sheet.namespaceAliases[1][uri]
self.__attrs.append((name, uri, AttributeValueTemplate.AttributeValueTemplate(attr.value)))
self.fixupAliases()
return
def fixupAliases(self):
sheet = self.ownerDocument.documentElement
self._aliasUri = self.namespaceURI
self._aliasNodeName = self.nodeName
if sheet.namespaceAliases[1].has_key(self.namespaceURI):
self._aliasNodeName = sheet.namespaceAliases[0][self.prefix] + ':' + self.localName
self._aliasUri = sheet.namespaceAliases[1][self.namespaceURI]
output_nss = self._nss.items()
for ons in output_nss:
prefix = ons[0]
ns = ons[1]
if ns in sheet.extensionNss + self.excludedNss + [XSL_NAMESPACE , XML_NAMESPACE]:
continue
if sheet.namespaceAliases[1].has_key(ns):
if sheet.namespaceAliases[0].has_key(prefix):
prefix = sheet.namespaceAliases[0][prefix]
ns = sheet.namespaceAliases[1][ns]
self._outputNss[prefix] = ns
return
def instantiate(self, context, processor):
origState = context.copy()
context.setNamespaces(self._nss)
processor.writers[-1].startElement(self._aliasNodeName, self._aliasUri, self._outputNss)
for (name, uri, avt) in self.__attrs:
value = avt.evaluate(context)
processor.writers[-1].attribute(name, value, uri)
for attr_set_name in self._useAttributeSets:
split_name = Util.ExpandQName(attr_set_name, namespaces=context.processorNss)
try:
attr_set = processor.attributeSets[split_name]
except KeyError:
raise XsltException(Error.UNDEFINED_ATTRIBUTE_SET, attr_set_name)
attr_set.use(context, processor)
for child in self.childNodes:
context = child.instantiate(context, processor)[0]
processor.writers[-1].endElement(self._aliasNodeName)
context.set(origState)
return (context,)
def __getinitargs__(self):
return (None, self.namespaceURI, self.localName, self.prefix,
self.baseUri)
def __getstate__(self):
base_state = XsltElement.__getstate__(self)
new_state = (base_state, self._nss, self._useAttributeSets,
self._outputNss, self._aliasUri, self._aliasNodeName,
self.__attrs, self.excludedNss)
return new_state
def __setstate__(self, state):
XsltElement.__setstate__(self, state[0])
self._nss = state[1]
self._useAttributeSets = state[2]
self._outputNss = state[3]
self._aliasUri = state[4]
self._aliasNodeName = state[5]
self.__attrs = state[6]
self.excludedNss = state[7]
return
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